Secunia Security Advisory – Gentoo has issued an update for pam. This fixes a security issue, which potentially can be exploited by malicious, local users to bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/41034/sa17365.txt
Source: https://packetstormsecurity.com/files/41034/Secunia-Security-Advisory-17365.html